It's really not. Google.com is still there. You can use the alternatives 99% of the time and get what you're looking for. Google itself is not a perfect algorithm. It's exploitable, censorable, etc. It doesn't always find what you're looking for. You shouldn't ever limit yourself to a single search engine, honestly.
I think YouTube is a far stickier service than Google Search, just because it's acted as an informal video archive of the past 15 years of internet video history. But I fully recognize the risks with this monopoly structure in place and have started to embrace alternatives like https://odysee.com/ and https://rumble.com/. It's time to disentangle from monopolies. Take your digital sovereignty back.