Black Lives Matter had a few rouge jackasses who threw a few molotov cocktails and broke into stores. That is inexcusable. They are criminals. The vast majority of protesters, however, are not criminals. They peacefully protest about social injustice.
The attack on the Capitol was designed to overthrow a fair election. All claims of fraud got either thrown out by Judges for lack of any evidence, or were never even stated by the attorneys ("we are not alleging fraud"), because it is illegal to lie to a Judge. They brought in plastic ties, guns, and pipe bombs to kill and hold hostage democrat government officials. They threw molotov cocktails and broke windows. They charged cops. This was by all means a riot and an attack on democracy.
If you can call BLM protests unlawful riots, then this was irrefutably the most dangerous riot in recent history.