Great that you give to your local church - do you want 20% going to our wise and benevolent government? If so, would you be willing to give more to cover the amount going to taxes? Our local parish had a processional crucifix that was two pipes welded together, we gave money specifically to get a nice gold-plated one - is this bad? If people give money for a beautiful gold covered building, is that bad? Beautiful churches help lift my soul to God and are things I want to help fund. Is this bad?
There are unfortunately only a handful of churches in this part of the state that I would call beautiful.
Again, If I had a choice to give my taxes to the places I felt were deserving I would, however none of us have a choice in that, and I wish they only took 20%.
You giving your money to whatever you want is great, no issue with any of this, if its a good feeling for you and you see it as good, keep it going.
But your gold covered idols are not part of the teachings of giving to the poor. A church regardless of domination is for the good of its members and the communities, them having huge buildings, gold idols to worship, and piles of tax free advantages, all the while not helping the drug addict, or the homeless is odd at best.
I give to our church to keep the lights on, the doors open, the preacher paid, etc. If they suddenly needed a bunch of gold chalets and diamond collection plates, I would feel a lot different.