Well yeah basically. The way communism morphed into a social movement it basically took on the same meaning as infidel.

Original meaning of the word should be pointed out though as the city dwelling middle class the rose up following the industrial revolution and the breakdown of the agrarian lord and serf relationship. Bourgeois in that sense filled power vacuum left in the wake of the industrial revolution that would have been held by the Lords before. And just as it would be stupid to consider all Lord/Serf relationships equal it's equally stupid to assume all Bourgeois/Proletariat relationships are equal.

Very early communist discourse when it was still academic and before it became a populist movement is quite interesting and has some good insights in how their society was changing. Once it became a populist movement it basically got increasingly stupid and rabid.