However I do think it’s a case of damned if you do damned if you don’t. As a consumer of big tech email I become equally frustrated when spam makes it past the filter and I expect them to do more.
If it’s easy for the average person to setup a mail sever with high reputation then it’s easy for spammers to do the same. I can’t think of a great way to manage this at scale for the average person using a $5 a month Digital Ocean VPS sending < 10 emails a month.
One thing I have noticed is that there’s still a load of large organisations failing to implement basic deliverability best practices like SPF records. These organisations have themselves to blame.