If that is all conservatives do you are correct.
If you are a conservative and want things in government to change for the better it takes more than that.
It going take getting involved in your local political organization; You need to find out who the conservatives are in your township, county and state Republican Party and support them however you can with your cash and/or your time.
If you aren’t involved in the Republican Party don’t complain if they don’t reflect your values.
I have been working in my county party for about 12 years now and I have seen it becoming more conservative in that time. Get involved and be a positive influence.
The system is so stacked against third parties we have to work within one of the two major parties to have any hope of reversing the trend to a more and more socialist system. We must infiltrate the Republican Party and change it from within just as the socialist did the Democrat Party.