This country survived before H1B immigration. One could say we actually had relatively more rapid technological progress during the time in which we had the least immigration.
Of course you're downvoted. You know who benefits from mass immigration of cheap skilled and unskilled labour? Growth/profit oriented businesses, aka the majority. And you know they'll fight for their profits.
After WW2, immigration dropped, while a lot of new work in all areas was popping up. Result - labour shortages and decent wages, more or less.
After WW2, immigration dropped, while a lot of new work in all areas was popping up. Result - labour shortages and decent wages, more or less.