You don't. GPU mining you can never be profitable at as there are private kernels floating around in the background you have to pay a few bitcoin for and are already distributed to the big miners, public kernels don't have nearly the same hashrate as those.
Putting that aside, there is no profit as Bitcoin just lost 1/3 it's value in the last couples days, which is essentially the mother coin. GPU mining is bust. CPU mining has private kernels as well. That just leaves ASICs as those you can at least see what's on the market, scrypt and sha-256 miners, but once again mother coin problems.
Ooh, finally you acknowledge that it's because of BTC being down. You're starting to see the truth.
For everyones interest: It's not just private miners (which have always been here) that are killing the coins, it's the downwards cycle Bitcoin is bringing upon us. Bitcoin down, altcoins (mostly GPU/CPU coins) are going even more down: aka no profits left for miners. There's also the upwards cycle: if Bitcoin booms, altcoins boom even more
Altcoins are even more volatile than BTC itself, it's like their "intrinsic volatility" (eat that, buffett) is multiplied by that of BTC. And that's what makes this game so hard.
Deal with it like an adult, and either avoid this game or live with it, or just keep on playing the troll you are. But stop pointing at black sheeps that are just gray and aren't alone out there, and claiming it's all their fault.
This kind of thinking is also what causes the crypto-investors aversion against miners. When BTC is down, and they see that the volume is going down too, they also notice that the daily flood of BTC (2.5/min) is taking up more % in the sell orders. So they think it's clear: downtrend is because of the miners. But that's the same short sightedness as you're practicing: It has always been there, it's just becoming more noticeable. Didn't stop profits from going up though, so you might think about another reason instead of playing it off as the only truth.
FYI: I do not have private miners myself, just mining with the public kernels on 2x 750tis. I'm also a very strong supporter for open-source, have been actively engaging in such communities (mostly filesharing though) for the last 10 years.
But I also think that we should stop pointing fingers at those who don't have the same principles, yelling "but he started it
" like little children. It will get us nowhere. Instead, you should actively engage in getting people interested in crypto so the right people get to know about it too, and maybe they will give you your fancy
free miners.