Too many people can't seem to understand the GOP isn't some monolithic block. Just like the government isn't some ephemeral "thing". The GOP and the government are just people, they are individuals.
People say, well I'll never vote for the GOP or I'll never join them, etc. If you want to effect change thing you've got 2 choices, create your own group (good luck with that, Libertarian Party . . . ) or you can use the existing power structure and take it over.
Now you tell me, which is easier?
And FYI, I've got myself, my wife, both parents, my brother (and possibly a sister-in-law) coming to the local delegate convention. Now, which is going to get more bang for the buck . . . spending 5 hours on PFH listening to phone rings and possibly convincing 5 people to show up and vote . . . or getting 5 people to be delegates at their local convention?
I love to do tabling, GOTV, etc. but as far as a bang for the buck, you get more success and more high commitment with your own personal circle.