Bots don't have a citizenship ("chinese", "russian"), they merely push the agenda of the person/persons who have paid the most, no? Are there not many hijacked

Bots don't have a citizenship ("chinese", "russian"), they merely push the agenda of the person/persons who have paid the most, no? Are there not many hijacked computers, routers, devices inside the USA and many other countries which are one of the most important parts of the bot networks to evade detection? I wonder if now that political advertising is banned on twitter if the illegal / immoral bot and human armies of agenda pushers will have a larger advantage than before now that those who follow the rules have lost their outlet of spreading their message with their donors money beyond their own profiles and their existing followers?