Is anyone else dying to get to Garlemald?

[Theodric]

THen what do you suggest as a permanent way of ending the imperial threat, peace is not an option.

...peace clearly is an option, since many Garleans have proven themselves to be reasonable and honourable. Garlemald will require changes in regards to how it operates moving forward but it is highly unlikely that it is going to be wiped out by the Eorzeans or the Warrior of Light. It's also a massive sprawling entity and so dismantling it would bring an immense amount of chaos - and good luck justifying ruining and ending the lives of the countless men, women and children living in Garlean territory.