Sad innit ... my part of deepest "quiet" rural Surrey leaves me deafened by chain saws, huge tractors and other agricultural equipment for large parts of the year with little I can do about it ....
Well, farming is an industry, and if you choose to live in an industrial zone, that's what you're going to get.
but if I stuck a little aeroplane in the field behind my house a few days a year all hell would probably break loose
So, what's the difference between farming and a motor glider. One is a societal necessity - we need farming and food. We could do quite well without touring motor gliders.
It's easier to put up with in the same way that I find it easier to put up with the roadworks outside my house, than the taxi-drivers who toot the horn at 3am once a week when they come to pick up my neighbours for the airport.
Just devil's advocating a little... I hope the OP gets his airstrip up and running.