If other drivers are flashing
If other drivers are flashing their lights at you, it is because you are blinding them. That is dangerous and SHOULD bother you quite a bit more than it apparently does. Driving with your high beams on is illegal because it is dangerous. It really doesn't matter what position the switch in your car is in, you have rigged your regular lights to function as high beams and are driving around as if that is perfectly fine because blinding other drivers while they are operating heavy machinery doesn't inconvenience you enough. You are going to cause an accident. If you can't or won't adjust the angle on your headlamps to avoid shooting bright light right into the eyes of other drivers, then you SHOULD go back to regular lamps. It is asinine that you seriously think other drivers signaling that your brights are on is only a problem if it bothers YOU. How self-absorbed.