Let me explain it simply, because I do like to help the developmentally disabled from time to time:
(New Fontana Encyclopedia of Modern Thought): reactionary. Adjective or noun applied to those who not merely resist change but seek to put the clock back and return to some earlier order of society which is seen as having possessed characteristics which the present is felt to lack.
When liberal society is threatened by a perceived fascist change, the previously liberal constituents become...
The words reaction and reactionary are commonly regarded as the opposite of progress and PROGRESSIVE. Few people, however, would describe themselves as reactionary, and the term is thus most frequently pejorative. It is employed mainly by the LEFT although both the Nazis (see NAZISM) and the FASCISTS also used it, in their case to describe the resistance of traditional INSTITUTIONS to their RIGHT-wing radicalism.
It would be ridiculous to say that the formerly progressive liberals have become social conservatives simply because they are reacting to conservative alterations in government.
But let me make it even simpler, since I can just sense that you will be drooling into your keyboard by now: If liberalism is solely about change, then almost all politics are inherently liberal. This is why liberalism is not exclusively defined as 'to change from past conditions'.
Liberalism is a political and moral philosophy based on the rights of the individual, liberty, consent of the governed, political equality, the right to private property, and equality before the law.[1][2]
Your attempt to conflate them falls flat because you again stated:
'reactionary' means 'opposing liberalism'.
So any radical left political position, such as Communism, cannot be 'reactionary'.
When that is plainly false. You have now just conflated my critique of neoliberalism with your pseudodefinitiom of "liberal politics." This is a characteristic of the developmentally disabled.