Yes but if you want a say in party rules you have to get involved: become a precinct committeeman. Posting to a forum is not activism.
Most Americans have busy lives, work, kid’s soccer, football, dance class, cleaning, cooking, landscaping, all fit into a citizen’s lives.
Which is why we shouldn’t have to get into the weeds to vote for President. We’ve voted for leaders to keep the process clean so we choose our President without having to turn into politicians ourselves.
And most of us are involved to some extent so keep your Cruz judgmental comments to your Cruz cult threads. You don’t get to judge the rest of America according to Ted’s standards.