I wouldn't exactly say that. You'll find that Dr. Piper and Charles Spurgeon both are Baptists (among others) and are outspoken Calvinists. Additionally if you Goggle on Reformed Baptists you'll find a site dedicated to those Baptists of the Reformed belief.
I posted quite a while back now an article on problems the Baptists are having because they don't have a solid theology. You can be a Calvinist Baptist (Dr. Piper) or an Arminian Baptist (Rick Warren) and it doesn't make a difference but their theologies are miles apart.
>>Additionally if you Goggle on Reformed Baptists you'll find a site dedicated to those Baptists of the Reformed belief.<<
Reformed Baptist here - of the only Reformed Baptist church in RI. Part of the SBC, planted in the 1970's.
My family and I left a very arminian baptist church when we saw that the theology they professed was very liberal. The pastor adopted the Warren theology of Church-growth, and we left shortly after.
I was talking about the "excommunicated members purporting to be proto-Baptists", and I meant 1-2 century of Our Lord, in the context of the Trail of Blood theory. I know that the Baptist theology of the modern era is on record, with all its diversity, and it, of course, usually resembles the rest of the Reformed theology.