Must means: "to be obliged or bound to by an imperative requirement." See
https://www.dictionary.com/browse/must?s=t.
Petition means: "a formally drawn request, often bearing the names of a number of those making the request, that is addressed to a person or group of persons in authority or power, soliciting some favor, right, mercy, or other benefit." See
https://www.dictionary.com/browse/petition?s=t.
The definitions show that
must is a requirement, but that
petition is simply a request. So, these two things don't fit together. Our petition doesn't require anything of the man. It only makes a request of him that he will ignore and go on with life.
Why waste the time?

for you is waste of time because you don't care. now i ask you... do you vote for your president and do you care about your country?
to be honest, i never voted and never will. i hate those shitty politician good for nothing and they are all the same in the world. i've been living in many countries so i know what i am talking.
if some politician or shitty foreigner f@ck my country, then i do something to bring them down. if you do nothing, then don't blame the system and your country, blame yourself for scratching your ass.
i give you 3 examples to google...
1) how south korea brought down the president
2) how mexico tried to bring down the president
3) how bolivia brought down the president
all this is based on your culture & achievement, see those Japanese guys. hiroshima is an example.