Do all Christians go to heaven?

well the catholic church never said other christians go to hell just because they are not in our church, only go to hell the people who don't follow the real gospel of christ, for example if I am going to a christian protestant church and they preach the hatred against the catholic church then I am sinning against the catholic church because the catholic church contains the real presence of christ, I should find a church where the love is more powerful than the hatred against the non- members of that church.