The protests that ended in widespread fire in Moria, Lesbos involved desperate scared migrants pushed into an increasingly hostile environment that has been exasperated by increasingly hostile political decisions. Migrants have been through hell to get to Lesbos, which they also describe as hell - not enough food, squalid conditions, when peoples live are threatened they will rightly fight for their lives, adding COVID-19 fears on top of this, you get protests and fire. The Moria Camp has been regularly criticised by the UN, being run well over capacity with poor sanitation since construction, and the closing of the camp had already been planned prior to the protests and fires.
Moria was initially meant to accommodate 2,850 migrants, but due to the massive backlog of approximately 90,000 asylum applications in Greece, Moria was housing around 5 times that limit. The fact that the camp was destroyed before it was closed down shows that the tipping point was reached and the Greek authorities should have been more expedient. But the situation looks worse, with some migrants are now reluctant to enter a new camp, fearing poor conditions and limitation of movement due to the pandemic. Thousands of migrants were left sleeping rough on the streets and hillsides as a result, and tension in Lesbos and elsewhere across Europe are flaring as the EU member states fail to deal with this long on-going migrant crisis.