I don't think anyone at Google is incentivized to fix this. Because fixing it will probably increase fraud, decrease revenue, and increase operational costs.

I think the only realistic path to fix this is through Federal legislation that gives new rights to users of online services. Google will fix this, only if it is legally forced to fix it.

The second possibility might be through a class action lawsuit of some kind. But I think the current Supreme Court is ideologically hostile to giving power to human beings over mega-corporations, so I don't see that going anywhere.

The third possibility might be a consumer led migration away from Google that hurts their bottom line and forces them to deal with it. But the number of people who are willing to do this is probably minuscule, so I don't think this will happen.