Crypto adoption may be higher, but that doesn't necessarily mean Bitcoin. Bitcoin could lose preeminence, another crypto could be more useful or more secure, or faster or cheaper.
Yeah, shitcoins always appear and attempt to overrun Bitcoin, but always failed, you are only looking at almost motionless bitcoin of today and never consider its possible updates that could kick ass to all shitcoins.
There's no shortage of ways to beat Bitcoin. Sinking a fortune into Bitcoin at these prices because you're sure the future is bright if you just wait long enough is risky play.
This is same with shitcoins, and worst that when bitcoins gains it strength your shitcoins still at the bottom

You seem to be completely oblivious to what happened last time Bitcoin tried to reach consensus on an important issue. You know, that whole blockchain size that nearly ripped the community apart and resulted in a last second folding by one of the parties to prevent an irreparable schism from tanking Bitcoin? Bitcoin's "innovations" have been outside the consensus mechanism for the simple fact that consensus on important updates is nearly impossible. I don't have any confidence that Bitcoin is nimble enough to adapt to changing conditions. It's like trying to steer an oil tanker around an obstacle course. There's just no reasons to expect it will happen or even be possible.