I am just not convinced your lighting issue is as bad for it as you suggest for the hogs moths and bats.
From the description of the light as having an orange glow, I’d say it’s almost certainly an LED emitter, so it doesn’t unscrew. Rather than black spray, I’d go with grey, it wouldn’t be so obvious from the other side, but would be opaque and cut out the light from the OP’s side.
Rather less contentious, I’d put up some sort of trellis fencing that would cut back most of the light, and plant honeysuckle and clematis to grow up it.
I wouldn’t plant ivy, it can rapidly get out of hand, and could end up growing into guttering and into the roof space, as a friend of mine found with the ivy growing up the end wall of her 17c hotel/tea room/restaurant, and home. I spent an entertaining afternoon hacking through the base of it, to kill it, then the whole lot was pulled off once it died, it was about 12’ high, and about the same across.
The ‘hogs won’t give a shit, they will come out in daylight if necessary, they’re not so much nocturnal, more crepuscular, like barn owls.