> I don't want to be lied to in any form by my government.
Completely understandable, and, I agree.
> I believe they can always govern by telling the truth, and if they did so they would find themselves commanding more respect from the people.
Regarding "can always govern by telling the truth," that's demonstrably untrue. For instance, there is such a thing as classified information for a reason (that reason ostensibly being national security). Yes, this does get abused at times, but that's not an argument that the government should not classify any information. Given your reference to Kant, I don't necessarily expect you to find this persuasive, but, I wager many reasonable people would.
> ...Kant's categorical imperative....
I am actually familiar, but I reject the logic of it. It's... well... too categorical. I can't accept a principle that forbids me to take an action that may save a life. For example, I would be prohibited from hiding someone in my home who's being pursued by people who want to kill them, if the pursuers asked me directly where that person was.
> If we stop treating each other as humans with rights, needs and desires, we will find ourselves in a very bad place - history has shown us that.
I agree with this, but I reject the idea that not following the categorical imperative at all times necessarily deprives anyone of any right.