I find it interesting and annoying when uneducated observers take to the internet to expound their ignorance at the cost of the police department challenged to keep them safe.
Resisting a lawful arrest creates problems for the suspect. This man is refusing to comply with the officers by keeping his hands under his body preventing handcuffing.


As noted above, if your behavior has caused a police officer to deem your arrest is legal and in the public interest, don't resist. Blame yourself for your stupidity and don't resist. These officers were completely within their right to use whatever force was necessary to get the suspect to comply.
Considering what ICE is doing in America I might agree with anyone filming an arrest by them but this is Canada not our imploding southern neighbour. Here is another one, this time in Toronto. https://www.jonathanmccormick.com/forum/law-enforcement-officers/arrest-protested