This is exactly the type of dehumanization that leads the "impressionable" to consider killing someone as an option. Free speech is one thing but consider this, if that shooter read comments on this forum at any point prior to committing his illegal act. Everything you say here now and everything you've said before will be placed under a microscope.
Ask yourself, throughout History can you think of anyone or any group of individuals that dehumanized certain people as part of their party rhetoric? I can.
Trump and some of his supporters.