i dont know how to block this on my kids tablet this is so frustrating and bad by google.

I think you're tackling this in the wrong direction.

Encourage your kid to be a creator. Not a consumer.

If he's busy building things, he has less time to be consuming things.

Give them a drawing book. Play a sport. Legos. Teach them how to make their own game on Roblox etc.

It's not about blocking your kid from things. It's about enabling them to expand skill sets.