They have a right to run and have their voices heard. It just so happens that the GOP isn't appealing to these groups anymore.
I'm not saying their voices should be stifled, I'm just saying they should know when to run and when they're only hurting the party brand. I suppose they believe in their ideals to such a degree they that will push their ideologies no matter the cost.
There will not be a liberal Democrat freshman elected from WV anytime soon. Whoever wins will either be moderate or conservative.
Of course, I wasn't referring to West Virginia specifically, more races like DE and NV in 2010.