Answer:
my answers are liberal veiws, but i hope this can help.
Step-by-step explanation:
1) I personally believe that it should be protected under the first amendment as free speech. My reasoning is that when people do burn the flag it is out of representation for needed change in the government/society. When the flag is burned most people don't do it because they hate America, it happens at (some) protests when the people feel that they aren't being heard by the government. It's supposed to be a statement, something that will get people's attention. This is all a part of freedom of speech, they are trying to be heard. Though I do understand why some people don't like the burning of the flag, if you don't like it then you don't have to, and that is your right as an American.
2)No, I don't think that an amendment to prohibit burning the flag would make it very far in the ratification process. I think this because in the past people have tried to make it a law for burning the flag to be illegal and it was not adopted. It failed because it was against our rights under the first amendment as Americans.
(sorry i couldnt think of anything for 3 but i hope this helps)