I have remote lockout on my Fox32SC and love it on my SS. I use it all the time to get nice feeling fork, but also more responsiveness when I am standing climbing. I have same fork my geared bike and don't have a remote and mostly keep it open. But there is much less standing climbing...
Secondly, I never see anyone lock out their fork. A modern fork that is properly set up rarely, if ever, needs to be locked out. I use it for long stretches of pavement when the need arises...
I just swapped a Pike for an SC34, no regrets, nice fork for a trail bike.I'm going with the fox 34 Step Cast with remote.120mm,clearance for 2.6,stiff enough, and not too heavy.
If you don't want a remote, you could try to find a Specialized brain fork
Singlespeed riding is a lot about momentum and speed prior to the climb. Especially for steep climbs, you really don't want to have to reach down to flip a switch at the same time you should be picking up speed.I just swapped a Pike for an SC34, no regrets, nice fork for a trail bike.
For an XC bike that doesn't see rough terrain, I'd go SC32 for weight, still plenty stiff.
No need for a remote, just reach down and twist, not sure if you need it locked, then set it in Propedal