You sadden me, Spork 
LOL why? It's not as though the quarians have a history of doing the smartest things.
Turn your liveships into dreadnoughts and circumvent the treaty of Farixen? No probs, we'll apologize later.
Develop an AI that kicked them off their planet? Oops, it was an accident.
Murder the the geth for becoming self-aware? Well, you know, we didn't mean for them to become self-aware in the first place.
So now they're back on Rannoch, building homes, learning to farm, etc. And along comes King Wrex and Queen Bakara to celebrate the end of the reaper war with their buddy Tali:
Wrex: Tali, it's been great partying it up with you here on Rannoch. Place looks fantastic by the way.
Tali: Gee thanks, Wrex. It's really great to be living on solid ground, you know?
Wrex: Sure. Yeah. Be a shame to lose it again.
Bakara: Wrex!
Wrex: What?
Tali: What do you mean?
Wrex: Well... we kinda noticed you don't really need the whole migrant fleet anymore.
Tali: Uh oh.
Wrex: Tali, the krogan would like to buy some of your ships.
Tali: But Wrex, you know Tuchanka has been demilitarized.
Bakara: We know, Tali. Tuchanka has also become a little crowded.
Wrex: Heh heh heh.
Bakara: We would like to buy some ships to transport some of our people to the new colony worlds we've been granted by the Council.
Tali: I see. How many ships are we talking about?
Wrex: All of them.
Tali: Ha! Hahaha heehee. All of them... that's pretty funny, Wrex.
Wrex *grins toothily*
Bakara *coughs politely*
Tali: Uhh... you were joking, right?
Wrex: Afraid not, Tali. Sooner or later, my people will need a fleet, so we can get around. You've got one you don't really need, right?
Tali *dumbfounded* : Got one we don't really need....?
Bakara: We'd like to extend the hand of friendship to you, Tali. The krogan want to be your allies.
Wrex: You don't want to be our enemies, do you?
Tali: Ulp.
Wrex: Do you?
Tali: I suppose not.
Wrex: Fantastic. Let's drink.