How about giving the user a big warning to not do that and then block the account if the user continues. This total blocks are crazy. Especially for people who use their Google account for 20+ years or something.

It seems like a temp ban here would be totally reasonable, like, "we disabled your account for a day here's why, don't do it again". Permanent though, eek!

Google's bundling of so many services into one account is becoming a gargantuan liability for them & their users.

This "zero tolerance" policy is just absurdly mega-goliath out of touch with the world. The sort of soulless brain dead corporatism that absolutely does not think for even a single millisecond about its decisions, that doesn't care about anything other than reducing customer support or complexity, no matter what the cost.

Kicking people off their accounts for this is Google being willing to cause enormous untoward damage. With basically not even the faintest willingness to try to correct. Gobsmacking vicious indifference, ok with suffering.