Conservatives (esp CAF people) don’t think liberals are evil people. We simply feel that they are wrong on select issues.
Some of the hot issues are viewed thought the lenses of morality and ethics. So if you believe something to be immoral, you are going to be view it as evil.
A true conservative (not talking about libertarians or neo-cons here) are typically religious, and in the US, they are typically Christians. Devout Christians believe in the teachings of Jesus, including love your enemy.
Liberals, esp progressives (excluding the devout liberal Christians) typically believe that their view is correct based on their sense of mortality and/or ethics. However, many liberals (and libertarians and neo-cons) today (again, not including devout liberal Christians) are secular and to not follow the idea of love your enemy and hate the sin but love the sinner.
So therefore, you many many liberals / progressives believing that conservatives are evil, while there are many right leaning libertarians & neo-cons believing liberals are evil.
But again, most true conservatives do NOT believe liberals are evil. We simply believe they are wrong & mistakenly approve of some evil concepts which are disguised as societal goods.
God bless