Assuming you are not married now, if/when you get married, your future spouse will be extremely grateful that you dealt with this now and on your own. Stand firm and take care of it now, don't make a spouse deal with it! It is the right decision for you and they have raised you to be a fine adult who can make such decisions on your own. Just remember that as their waves crash against you.
To add and maybe make you feel better, and to vent a bit
...there may be a cultural component, but it may also be personality driven. Mine and DH's parents are same race, similar small town USA backgrounds, and our Father's were career military. The only difference is his Mom was stay at home and mine had a career. Yet they had completely opposite reactions to where we live.
My DH and I met while in college, here in DC area, with our parents living about 4 miles apart at the time. Right about the time we got engaged
his parents moved away, to S. Florida, and then 3 years later moved to Tampa area. (Mine also moved away during that time). A year after their first move we graduated and got married and settled here in the DC area. It took them, both his mom and dad, 10 years to get it through their heads that he was not going to move "home" to Florida. Now this is the part that I love, they did not live anywhere near their parents from the time of their marriage either... And here is the best part of all...we have lived in a 5 mile radius of their former house in Northern Virginia ever since the day we married, yet we are the ones in the "wrong." I have heard the word "ungrateful" used many times as they applied pressure and outright nastiness to get us to move near them, as if that was incentive
. They also blame me for his "misguided choice" because my field of work is here, there is nothing for me in the areas of Florida where they live.
His brother moved with them and then moved away 4 years later, after getting married and having children. Oh my, that was much worse and they have never gotten over it. 16 years and counting, and in a repeat performance, they continue to blame his spouse. His mother still
about "his wife's selfishness."
Deal with it now. It really is the best thing for your future.