Confirmation time and transaction fees can be a problem for bitcoin businesses,but
altcoin prices are unstable and using altcoins is more risky.
No altcoin is better than bitcoin in terms of stability and safety.
Yes, bitcoin is much safer and safer. Over time, it will improve all the problematic functions of making transactions.
There are quite a few altcoins that are based on Bitcoin and they're not really less safe than Bitcoin itself.
Some altcoins also have pretty much a head start on Bitcoin when it comes to transaction speed & cost, Bitcoin might be able to fix its problems but some altcoins are already way ahead.
That is why it is an altcoin. It is the coin of a maker that found a solution to a certain problem of bitcoin and thought that it is better than bitcoin, but the thing about bitcoin is, it is the original coin, no matter how many times you make a new altcoin, bitcoin will still remain popular.