It looks like a post of very Bitcoin religious people, that seek grow only for BTC, see only BTC and do not recognise value of any other coin/asset. Your "collapse obsessed" mood is ridiculous.
To dump coin market now, at this stage, would be soooo cheap, so irrational and so naive, at the time when it just start gets investors attention around the world.
Any alts can leave and have value without BTC: XRP will do its settlement/remittance, LTC will be better choice of BTC in some places of the world, ETH will serve as contract, GNT will run supercomputers, XMR/ZEC/DASH will do its privacy in one or another way, and they do not need BTC for that, latter needed only for exchanges.
So BTC neither king nor god, another yet crypto coin. Making it central, does not come together with being decentralized.
I am in no way a Bitcoin maximalist. I have been one of the biggest supporters and believers in ALT coins for years now. Just about all of my posting history in the past five years has been in the ALT coin subforums. I see the value in ALT coins and believe some of them will be incredibly valuable one day.
However, at the same time I am also a realist who understands cryptocurrency market dynamics after following them closely for years. Most ALT coins are in a bubble, and Bitcoin is nearing a bubble. Both bubbles will eventually pop. It is not foolish to dump ALT coins while Bitcoin is testing new all time highs, nor is it foolish to sell both Bitcoins and ALT coins for FIAT after the Bitcoin bubble pops... because all markets will likely trend downward (as they always have in the past when that happens.)
It is foolish to claim Bitcoin is not the king of cryptocurrencies. The network effect reigns supreme, as it is Bitcoin that is in the news all day everyday and it is Bitcoin that brings in new people to the cryptocurrency ecosystem. Someone is exponentially more likely to hear about Bitcoin before any random ALT coin. Almost all trading volume for ALT coins is in BTC trading pairs. To buy almost every ALT coin you need to go through Bitcoin. Almost all services and merchants accept Bitcoin, but services are exponentially less likely to accept any random ALT coin. Bitcoin's market cap and volume dwarfs all other ALT coins combined. Bitcoin is heavily intertwined with the ALT coin ecosystem, and market dynamics of Bitcoin effect ALT coin markets directly.
All of the alts are overpriced but that's the trend now it seems. Maybe we have been used to low prices for so long that this doesn't seem right to us. I know what you mean. ETH at 70 Dash at 90 plus many others pumped way over their normal values. I just hope this is the norm but I'm hesitant to put more money in at this point.
This is why I think an ALT crash is looming. You are definitely not the only one that is hesitant to put more money in ALTs at the moment. I think most reasonable informed investors probably feel the same way. Only the true rose colored glasses ALT investors and total noobs are buying at this time. The money held by those two groups will dry up sooner or later.
But it seemed that way over a month ago, because the last bull market didn't last very long. It seemed this one might end when the last one did, but it kept going up.
I agree it's a risky time to buy, but it seems that's the mark of a great trader, being able to put a little in at times of maximum pessimism. Although I agree with the bolded... you could also say that another mark of a great trader is to know when to sell. Knowing when to both buy and sell is supreme over only knowing when to buy or only knowing when to sell.
That is the hardest part about all of this... determining when the bubbles will pop. There could still be profits to be made in the ALT coin markets before the ALT coin bubble pops, but it is close enough to that time for me to sell all of my ALT coins and wait for it to do so. So far that decision has paid off, because as of one (or in some cases two) day(s) ago my portfolio is 100% in BTC. Meanwhile, most of the ALT coins I used to hold have been going down.
Maybe I will end up being wrong, but so far I am liking my decision and thought process.