What effects would a unified Germany in 1848 have on German emigration?
For instance, would German liberals remain in Germany in this TL due to their hopes not being dashed? Also, if a Germany which is unified in 1848 eventually goes to war in Russia and acquires some Baltic territories from Russia, could these territorial acquisitions and likely resulting free land discourage some Germans from emigrating abroad (such as to the U.S., which had a lot of available good land back then)?In addition to this, could more Czechs and Slovenes emigrate in this TL due to them being put under strong German rule staring from 1848?
Any thoughts on all of this?