I'm certainly not one to say everything should be as safe as possible for kids, but there's a limit to what a parent can reasonably be expected to understand. If I set my kid up watching a blues clues clip, and look away for 30 seconds and he's seeing a clown with its arm torn off which autoplayed, I feel like I'm reasonably kinda entitled to go hey wtf google, your shit is broken and its harmed my kid.
And then, of course, not let my kid use youtube anymore.
YouTube throws up videos to children that look good until you get to the second of the video some psychopath has spliced into it. It’s literally not possible to safely put your kid in front of YouTube unless you have pre watched every video YouTube might potentially auto services up to your 3yo
If you don't want your kids on a product, then supervise them. Don't ban the product for everyone who can use it responsibly.