Zaid Alsalami, Shaykh Dr Zaid Alsalami is an Iraqi born scholar, raised in Australia. He obtained a BA from Al-Mustafa University, Qom, and an MA from the Islamic College in London. He also obtained a PhD from... Answered 2 months ago

Bismihi ta'ala

If you do not have a physical injury or a handicap that would prevent you from observing the correct form of prayer, which is standing up, then you are not allowed to pray sitting down. 

Whatever the environment may be, you must be able to take breaks, in which you can find an empty space to pray in. If the situation is very bad, then you must think of leaving that toxic environment so you are able to express your religious freedom and do you wajibaat in the correct form. 

And Allah knows best