It is hard to say how not to finance Myanmar government if you decided to visit Myanmar. You can not really guess how much your Myanmar finance budget that goes to Myanmar Government. But at least you are helping Myanmar people when you decided to visit Myanmar. Some Myanmar hotels and restaurants are government run but most of hotels in Myanmar are related. As
Myanmar people like foreigners and they all think you are rich, you will always receive a smile from local Myanmar people. Here are some travels Myanmar tips for you why Myanmar people like foreigners.
So at the question "should you visit Myanmar?" as a foreigner, we will say "Yes" "certainly!" Myanmar Local people do not deserve a boycott from the west! Also, a huge number of people are working in the tourist industry and unemployment won't really improve their situation. There is really no good reason to overspend on the Myanmar government. A few things that you could do are avoid staying government run hotels and government transport. But that doesn't help that much.