Zero legal consequence -- social consequence or vigilante consequence was always a possibility.

> More recently, people have been pushing back on men who are inappropriate

What's considered inappropriate is precisely what's changing.

> The new rules are essentially 'be respectful' and "there's a time a place" and 'politely accept no as an answer' and 'no one owes you shit'.

Those have always been the rules.

What has changed is what counts as respectful, and exactly when and where are the allowed times and places.

There really are those pushing a message that any (non-reciprocated) sexual interest is disrespectful. Excluding work from allowed time-and-place and then "there's a time and place" excludes the places where one spends a great deal of one's time out of the house, with people one knows and can judge, and are likely to be prefiltered to have similar interests and socio-economic background. Work romances are still a huge proportion of how marriages start.

> They aren't complicated rules.

They are when the underlying terms are in the process of being redefined.