Going to be honest with you bro.
Most of the people protesting in America don't give two flying fucks about African Americans. Within a manner of days, people that were entirely ignorant of American racial issues were suddenly experts, casting judgement on any that they deemed "complicit" in the systematic racism against POC. Why is this happening? Well, it's kind of simple when you live her and examine the situation closely. The lockdown orders were defied by a good portion of our population from day one. They either don't believe its a major issue or flat out deny its existence entirely, sweeping it under the rug as a leftist conspiracy plotting to establish an authoritarian state. Even the ones who stayed home weren't particularly too happy about their current state of affairs, and are now using the protests as a means of catharsis. The virtue-signaling is on full display. On my Instagram feed alone, I have seen people white as the insides of french bread proclaim their devotion towards black businesses, artists, and politicians regardless of what they stand for. It's bandwagoning on a scale I have actually never seen before, likely exacerbated by the fact that over 50 million of us are out a job. I guarantee you that if Floyd had been murdered on any year besides this one, the protests and subsequent riots would be relatively contained to a small group (looking at you Seattle). Despite this, the amount of relationships that have been evaporated over these issues is unprecedented. It has reached a point that your political stance WILL damage every aspect of your life. The line has been blurred and there is no going back.
Same thing happened with Travyon Martin, Eric Gardner, Michael Brown, and dozens of others. They die by the polices's hand, media stirs up a frenzy, everyone starts talking about how this will be the revolution that finally kickstarts actual change, then nothing. Happens every time. Nothing short of marching on Capitol Hill by the millions will change anything now.
This started with Desert Storm in the 90s, no reason to expect it will stop now. The outrage is now running on fumes, in a few weeks will go back to Corona when the death toll finally climbs to a point where it can no longer be ignored. The media needs these kinds of events so that their profit is maximized. When the protest's usefulness is finally expended, they will find their next resource to exploit, eventually rendering it barren. Repeat ad infinitum.
As for Europe, I can't say I'm surprised. The Easterners will routinely mock our racial disparities and borderline dystopian police force while continuing to call for the genocide of the Romani. The Westerners will argue that their problems are nowhere near the level of America's, using this as deflection so that they may ignore their own sociopolitical issues. They are right in the sense that American news dominating the news cycle is moronic, but that's about as far as it goes. When the next immigrant wave crosses the Mediterranean, you will see the same racism be spewed, of this I am certain.
It's humorous watching a select few Balkan countries manufacture solidarity when all they need is a personality-cult dictator in power to convince them that a mass killing-spree targeting the Bosniaks is wholly justified.
Concerning Ireland, I guess you could kind of see why they are protesting.... if this was during any other year. Most of the protesters seem to be college students fed up with their own lockdown. This is going to be a stretch, but Ireland's history of oppression by the English, specifically the Troubles, may or may not contribute. The Irish were treated like shit for centuries, so maybe they see something of a resemblance in how African Americans are being treated in the USA, and now stand in solidarity with them. Either that or the virtue-signalling has now went global, and the USA has secured a cultural victory, infecting every corner of the planet with its cancerous 24/7 news machine.
EDIT: Found this earlier, pathetic but also hilarious.
https://twitter.com/dominiquetaegon/status/1230449015705260032