I supervise the majority of the time. I still do my own cases maybe 10% of the time depending on manpower/scheduling. I'm in my 5th year PP.
The system favors an ACT model. If that is the system/model in your place then all you can do is make the best of it. Mutual respect is key as are getting to know the nuances, personalities, and skill levels of the CRNA's. I would nip any blatant militancy in the bud in whatever way possible however, and this can be a headache. But, I think it's important to do.
That said, most mid-levels just want to be treated like a decent human being and to get the job done. Make sure you hold up to your end of the bargain, and see patients on time, get orders in, get to the OR in time to start cases without delay. Communicate with them, and take a team approach to things. They are not your enemy in spite of the rhetoric we hear and coming from national PAC's etc. In the group, you are there to be professionals (all of you) and to get the job done smoothly.
There are a myriad of ways (indeed you won't be able to avoid them) to stay hands on in an ACT model. Sometimes this depends on the culture within your department, and the rigidity to which you adhere to certain criteria. But, there are usually ample opportunities to start cases solo, wake up patients and take to PACU, and of course there is nothing that says they do all intubations. Indeed I encourage you to do maybe 2 out of, say, 6 intubations (for a busy gen surg room for example). This won't rub them the wrong way as if you are "stealing" all the fun, or come off that you don't trust them to do a good job. In fact, they will respect you for wanting to maintain your skills.
Do all known difficult intubations yourself. You just have to do that and draw the line that that is your role. Of course that applies to difficult airway gear. That is, however, not to say you can't let them try for cases you are not truly that concerned about. For sure docs get better advanced airway experience in training.
It's hard to explain until you've been in an ACT model, but there are plenty of ways for docs to stay exceptionally relevant in the hospital system. 5 years out and I am less worried about a CRNA taking my job that I was in med school or residency. Maybe I'm in a bubble, but I don't think so. Stay active in the department, engage in committees, and be the professional you trained to be. This will solve 80% of your problems.
Again, take a team approach because then you always have the moral and professional high ground. Any bad apples will either weed themselves out or be universally recognized as such..
Good luck.