Should Republicans give up on Presidential races completely?

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2016 and 2020 are locks for Hillary. By 2024, AZ, TX and GA at least will all be solidly Democratic,  making it impossible for a Republican to win the White House.

Anything can happen in any random presidential year.  They seem to have a pretty good lock on the House and a chance to win the Senate. A screw up on the presidential campaign trail could easily give them three branches of government.  Holding onto the House with a bunch of gerrymandered districts is a lot easier than holding onto the White House.  The Republicans can consistently hold onto the House even as they lose the popular vote over and over.  You can't count on that to hold the White House.

It is highly unlikely that the Dems can hold the White House for 4 elections in a row.  The business cycle will see to that at some point.  Although I agree once Texas becomes a battle ground state it is going to get very ugly for Republicans.  Can't wait.  It will be nice to have two semi reasonable parties again.

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The idea that one party is going to completely dominate the national scene is utterly senseless. Sure, current trends might look bad for Republicans. But we'll adjust to them, and this party will moderate on social issues and start appeasing Hispanics. It may take some time, as a chunk of Republicans seem to be of the opinion we can remain a relevant party despite being anti-Hispanic and socially conservative, but after a string of losses, I think the point will be realized, and a shift will occur.

Well that would be a win for everyone if your version of the future were to actually happen.  Most people don't want the GOP to disappear.  They just want the party to join the rest of us in reality.  Some of us would like a choice when we go into the voting booth.  But I know I can't vote for anyone or strengthen any party that spews hate againsts blacks, Hispanics, women, etc.