The Republicans need to dump Trump and find another nominee if they want the the party to survive. Donald Trump is alienating almost every group of voter and splitting the party with his rants and racist remarks. In the 1960’s Barry Goldwater turned the African-American vote against the Republicans and they have never been able to get the vast majority of that back, Donald Trump could have the same effect on the party this time around by pushing away more African-Americans, Latinos, Muslims, and Women, and splitting the party.
Long Term vs. Short Term
Yes in the short term the party will suffer, they will lose some House and Senate seats and they will loose the White House, but in the long term they will be able to survive and come back. If they stick with Trump and continue to endorse him they will lose major voting blocks, be painted as the racist and sexist party, and they will lose more and more seats until they cease to exist do to lack of members.
The Problem Today
The problem with today’s political parties is they care more about the party than they do about their country, their priorities (Republican and Democrat) go like this: