Sympathy Words Phrases Why Do Some People Use The Words "liberal" And Sometimes "conservative" In A Pejorative Sense?

Why do some people use the words "liberal" and sometimes "conservative" in a pejorative sense? - sympathy words phrases

It's all you baby killers Darn liberals "and that" I hope that this hole exploration, unpatriotic liberal scum ", dass

Liberal Definition:

# General Sympathy: or show characterized by openness, "a political position in the broadest sense," "generous and comprehensive", "a liberal newspaper," "tolerant ...
# According to political or social opinions in favor of reform and progress
# Tolerant of change, not bound by authoritarianism, orthodoxy, or tradition
# A person who favors a political philosophy of progress and reform and the protection of civil liberties

Is it me or not "liberal" in the middle of an insult, since the use of the terms "pro-freedom" or "person who defends the civil rights of people."

Why is the modern definition of the word took on a look that is now regarded as too narrow or thrown degrading and demeaning personal insults without even a second?

This also happened to the word "conservative", which is a pejorative term at point of use, and the original meaning and has become determined.