Many altcoins saw a significant price increase as BTC.D dropped from 64% to 59%, so it is understandable that they corrected and bitcoin dominance increased slightly.

I really only believe that altcoin season won't come if bitcoin dominance can rise back up to 65% again. Otherwise, sooner or later it will have to drop below 50% and altcoin season will explode.

Many people make the mistake of relying on the past (market cycles), thinking that everything needs to be repeated exactly to the last detail. Just one small change, they immediately assume that history has changed, it is no longer true...bla...bla..bla..And that is exactly what is happening. Just because altcoins haven't been growing with bitcoin all this time, or altcoin season hasn't arrived yet when the bull season is about to end...they immediately conclude that it won't arrive. But for me, and I said this many times in the 2022 bear market, when something keeps repeating itself and becomes too predictable, it needs to change.

I believe altcoin season will come but there will be a certain delay and it will only come when not too many people believe in it anymore.

Bitcoin can't kill other cryptocurrencies because simply put without BTC other cryptocurrencies wouldn't exist, other cryptocurrencies don't have the same history as Bitcoin, It's easy to see that Bitcoin gives life to all cryptocurrencies , which is why no cryptocurrency can compare it to BTC and even if a cryptocurrency backed by gold, precious metals, or anything else that can support it is released, it will never be more important than BTC and BTC won't kill it either.

Comparing BTC to other cryptocurrencies and saying that BTC will destroy it is pointless, debating the Probability of survival of other Cryptocurrencies using BTC as a benchmark is another matter.

It has already killed them. Collective human greed by bad and good people will never lead to a situation where other cryptocurrencies are gone. If you think about it simply all those project founders and developers who claim to have a mission to improve the world would have contributed to Bitcoin and made it better if that was true. But they are just trying to sell you their greed with lies, and many people fall for it. They are not interested in making anything better, their primary interest lies in lining their pockets. As long as this is true other cryptos will exist.

I think you are very strongly underestimating the count. There are currently millions of dead tokens.

Bitcoin is BTC. Bitcoin has nothing to do with anything else, let alone being responsible for other coins. If others want to emulate Bitcoin, no one is stopping them, but their efforts to emulate Bitcoin have not been successful to date.
Bitcoin has never aimed to be a competitor, but if others want to compete with Bitcoin, they are welcome to do so.

Individuals, investors, or traders have the right to choose between Bitcoin or other coins.
If you want safety, success, and long-term profits, Bitcoin is the choice. If you want high risk, the choice might be other coins besides Bitcoin.

I believe Bitcoin doesn't kill other cryptos, because they die by their own incompetence. Most dead coins and tokens have been created with the sole purpose of generating speculative profit for its developers, by just copying Bitcoin, without adding any innovative feature to their own projects.

Bitcoin has nothing to do with this. Actually, such cryptos have never been a threat or imposed a competition to Bitcoin in first place.

It's more about trying to kill or replace bitcoin. If you haven't heard, many altcoins are created because of bitcoin. If there's no bitcoin created then many of the altcoins are created based on bitcoin. This is also what happened on meme coins like a meme coin is created and another meme coins is created based on the meme coin but in this case is that it is created based on bitcoin. There's no need for bitcoin to kill the altcoins since it's the altcoins that are competing with bitcoin which many of it failed.