This is an old divide in Conservatism. The Dogmatist care nothing about reality only the purity of the dogma matters. The Realist understands you have to be able to advance the political ball down the field to achieve the goals of the dogma.
Reagan, who was a realist, wrote about it.
By Ronald Reagan in his autobiography An American Life
“When I began entering into the give and take of legislative bargaining in Sacramento, a lot of the most radical conservatives who had supported me during the election didn’t like it. “Compromise” was a dirty word to them and they wouldn’t face the fact that we couldn’t get all of what we wanted today. They wanted all or nothing and they wanted it all at once. If you don’t get it all, some said, don’t take anything. I’d learned while negotiating union contracts that you seldom got everything you asked for. And I agreed with FDR, who said in 1933: ‘I have no expectations of making a hit every time I come to bat. What I seek is the highest possible batting average.’ If you got seventy-five or eighty percent of what you were asking for, I say, you take it and fight for the rest later, and that’s what I told these radical conservatives who never got used to it.
Precisely
So many of these purists would or did hate Reagan.