If by imperialism, you are inferring a supposed encroachment on a traditionalist culture, I would posit that cultures have never been a static entity, holding onto a static identity. Rather, cultures have been, and always will be an ever evolving and constantly changing collaboration of individuals who hopefully continually evolve as they continually re evaluate who they wish to be collectively.

There will always be backlash against this change of culture and values, which you are obviously exemplifying here, but I'll point out that historically this kind of holding onto the past has never really worked out nor has such resistance ever lasted in the face of the general trend of humanity becoming more and more accepting of different ways of living and loving.

I encourage you to consider not holding on so tightly to the past and instead find your place as a peaceful member of the ever changing and evolving and more accepting society that will, in spite of the adversity to it, eventually come to be.