Great news! Poland really is changing, for the worse!
For the worse?
Perhaps you should be more concerned about why a priest did this, as opposed to claiming that the country is getting worse. That's exactly the mentality that's causing the Catholic Church to lose power/influence all over the world - blaming everyone else rather than looking inside.
Poland completely turns away from its past and turns in to a GB/USA wannabe, multiculturalist, foreign run, anti Church, do what you want, melting pot. Basically it would lose most of the values it used to have and proudly stand for. I wonder what some of the past greats such as John Paul II and Jozef Pilsudski are thinking?
I can clearly see that you've never lived here - otherwise you wouldn't come out with such rubbish. Poland has been multicultural for years and years. Need I remind you that Poland in the times of the Commonwealth was one of the most tolerant, open countries in Europe? Do you need reminded that Kashubians, Lemkos, Belarusians, Ukrainians, Germans, Lithuanians, Poles, Jews and more all lived quite happily within her borders?
Let's be honest - you're just a kid that's utterly dissatisified with his life in the UK and fantasies about how great Poland is, but you don't actually live here. All these "values" you talk about - they only existed in a brief 20 year period of Polish history.