Because time is inexorable and experienced as singular directional, conservatism will always be reactive, but never universal. It can’t be universal, because nothing human is; but there will always be people who think what went before is better than what is now, and that is, broadly, what is conservative.
Julian, Emperor of Rome, wanted to stop the Christian and elite/imperial degradation of traditional Roman religion. He was always doomed to failure, because his world had become Christian, with all the attendant Christian faith in a progressive history, in time as soteriological eschatology.
Modern ‘Christian’ traditionalists (who, believing in politics and power, prove themselves atheists with Christian semiotics) want to put an end to the secularization of the fundamental progressive faith in a historical culmination towards perfection, but they are doomed to failure, because their world is a secular one, in which all the assumptions of Christianity, by way of the Enlightenment, have become the ordinary way of experiencing time, self and history.
Actual concept. I believe in the social contract. I don’t think it’s bad but only to a degree. You should be able to reject society, as long as you understand that when you act within or against that society its rules will apply.
There is always that dichotomy - more relevant than the “left/right” dynamic - between those who seek to push the wheel backwards towards an idealized past, and those who seek to push the wheel forwards towards an idealized future.