Some people think it is. In many legal jurisdictions, prosecutors and cops rely on the idea of a 'true threat' which has to be specific and imminent. So a generalized expression of hate like 'all _____ should die' wouldn't count. Here's a relevant example, about a woman in Michigan who eventually resorted to shaming her neighbor int he media because she had no confidence in reporting to police:
The problem with a very mechanistic/binary approach to legal questions is that it leaves a lot of room for antagonistic or outright threatening behavior that nevertheless remains within the bounds of legality. Experience suggests that's likely better than vague or arbitrary standards, but it's not a simple issue.
https://www.freep.com/story/news/local/michigan/wayne/2021/0...
The problem with a very mechanistic/binary approach to legal questions is that it leaves a lot of room for antagonistic or outright threatening behavior that nevertheless remains within the bounds of legality. Experience suggests that's likely better than vague or arbitrary standards, but it's not a simple issue.