At no time are we told to 'submit to authority' or 'obey the king'. We are, infact, told to fight the powers and principalities of the world. Demonic powers like unfair trade rules, slave/sweat shops, slave labour, and a system where 1% of the population control 40% of the world's wealth, and where the richest 3 have more than the poorest 600,000,000.
To that all I can respond is read your Bible and that I believe you misinterpreted Ephesians 6:12 if that is what you are referring to. This verse refers to spiritual warfare, not earthly. The rulers which are referred to are Demonic forces, yes, but they are the rulers of this world, they don't have to possess a dictator to do so or infiltrate a government. It is a fallen world given over to sin and Satan, why else would he be repeatedly referred to as "the god of this world," "the prince of the powers of the air," or "the prince of this world"? It is referring to our battle being against spirits, not people, and then goes about how to tell us to gear ourselves for battle with them. It never says that our battle is against unjust governments, it is referring to the spirit world's grip on this one.
1Pe 2:17 Honor all men. Love the brotherhood. Fear God.
Honor the king.
1Pe 2:18
Servants, be subject to your masters with all fear; not only to the good and gentle, but also to the froward.
1Pe 2:19 For this is thankworthy, if a man for conscience toward God endure grief, suffering wrongfully.
1Pe 2:20 For what glory is it, if, when ye be buffeted for your faults, ye shall take it patiently? but if, when ye do well, and suffer for it, ye take it patiently, this is acceptable with God.
Heb 13:17
Obey them that have the rule over you, and
submit yourselves: for they watch for your souls, as they that must give account, that they may do it with joy, and not with grief: for that is unprofitable for you.
If you look at the life of Paul in Acts he was always respectful and submitted to the established authority over him-regardless of if they were just or or had misused their power. Jesus tells Pilate that the only authority he has has been given to him from above.
2 Timothy 2:4 "No man that warreth entangleth himself with the affairs of this life; that he may please him who hath chosen him to be a soldier."
that says it right there-live in this world but don't be conformed by it because we have a better on on the way. If you're more focused on getting this or that done or saying this system is better than that you're focusing on iniquity, not the kingdom of God, and you're being tangled up in affairs of this world. So long as the government doesn't stop you from being a Christian, you should submit. It doesn't make a lot of sense, and none of us really like to, but that is what the Bible says.