Don't get me wrong, absolutely fuck Reagan and lady Reagan (Thatcher), but to ignore the framework that preceded them and enabled them to do what they did is being wilfully ignorant and is counter productive.
Yeah, they fucked society up in their unique and terrible ways, but they are absolutely not the cause of our problems, just another symptom.
The cause is capitalism (and before that, feudalism) and the varied systemic oppression and exploitation it relies on to exist.
It is a tangible cause we can and should fight against, not a ghost to pointlessly shake a fist at for a quick dopamine hit.