Frankly I think the rest of the world has more on it's plate than whether a few parties took place in Downing Street (and I am not trying to minimise the reaction in this country, the government has rightly been castigated here and I think Boris should have gone by now, I just don't think Englands Covid rules are a desperate concern to other countries).
Governments over the world have done far ,far worse than this.
Where are you from incidentally, not the UK presumably.
What on earth would a petition for his resignation achieve. Predictably his opponents woiuld say yes and just as predictably Tory MP'a would completely ignore it!!