can't even compare them either really. maybe the russians pre ww2?It would be more accurate to compare them to the mongols
krogans were more concerned with nuking themselves and endless civil strife than actually leaving their planet. they only got introduced to the spacefaring stage to counter the rachni - and instead of being happy with the thanks they got they said fukk everybody
shyt, the rachni deserved a second chance more than the krogans did but i also peep the ender's game nod with that whole story thread