My biggest concern is how so many drivers these days target serous aggression towards me based on how other cyclists have made them feel. The roads are not a nice place to be for a cyclist these days and something needs to be done soon.
Yes, although I feel that sometimes, that's a post-hoc rationalisation of their bad behaviour. E.g. they do something idiotic and impatient, because they simply are not considering the consequences, which they then justify by reaching into the grab bag of anti-cycling tropes.
I think that in most cases, the idiotic behavior would probably still happen[1], tbh, regardless of whether they felt forced to justify it with some anti-cycling nonsense or not.
[1] Because, among other things, of a road culture that prioritises anything with a motor, that minimises and condones motoring crime/bad behaviour as less anti-social than that occuring in other spheres of life, and that holds as very important a sort of pointless alacrity in which it is vital to get to the next traffic bottleneck as quickly as possible, regardless of the minor (if any) improvement in overall journey time.