Here is my take on this:
I am usually against any company ban if it's doing a good job and not scamming their customers. I was against Huawei ban because none of the investigations showed that China used Huawei technology for spying. And while it's true China isn't exactly the most friendly country to countries around the world, they usually are just looking for their own benefit. And while it's true that they have terrible record regarding privacy in general, I really do think they haven't used it for spying on users in the entire world. The sole purpose of Trump's Huawei ban was to prevent China from winning in 5G race. But I am in favor of Kaspersky ban and here's why.
First and foremost, Kaspersky is a business of great importance to Russian government. They are, what we would call here produljena ruka (lit. extended arm) of Russian government and intelligence services as it was confirmed multiple times. If I remember correctly, they admitted having ties to the Russian military which is currently committing crimes in Ukraine. Just for that reason, I'd refuse to use any of their products. By paying for their product, you're are literally financing their terrorist activity and genocide. This is also why I refuse to use any Chinese made software. Trust me, before I start using any product, I always investigate company behind it. If I see Chinese company, I just skip it and look for an alternative.
Many of you are saying "I'll keep using Kaspersky because it's the best, and has best protection". This might be true, but do you know why? Because Russian hackers actually made the modern malware. So if they made it, of course Russian antivirus will have the best knowledge of how to block it. Seriously, have you ever wondered why many versions of ransomware refuse to do any damage if it finds itself on a PC with set Russian language and/or keyboard layout? It's because these are produced for international market, not for local one. Russia and China are among the top countries known for their cybercrimes. Take that into consideration as well.
And lastly, Kaspersky is a company contributing to Russian government's budget which spends a lot of money on their atrocities in Ukraine. By purchasing their product, part of your money goes directly to financing the war. As long as we do business with Russian companies and Russia will be able to afford the war, the horrific pictures and videos from Ukraine will keep coming on daily basis. The war can stop immediately if every country in the world just stopped doing business with Russia and their companies. Kaspersky is just the start. I mean, when Russia invaded Ukraine, they never mentioned how they are against the war. They literally just said how they are monitoring the situation in Ukraine. And then for contrast, just look at the AdGuard, which used to be Russian company. They immediately voiced their disagreement and even relocated their company to Cyprus. Despite their employees being from the each side of the front line. If I remember correctly, they also offered their employees relocation as well. They are an example how the company should behave.
Why I'm saying this? My country was in the same situation in the 90s as Ukraine right now, although with less powerful enemy. And when the war started, we didn't even have an army, let alone weapons to defend. Heck, UN even put embargo on us so countries were forbidden from selling us weapons. To make the situation worse, we literally had the enemy on the inside because all of the military complexes here were under JNA. This is also why the war in Ukraine shocked us more then any other country in Europe, because of how similar it is. Siege of Mariupol reopened the memories of Vukovar and Sarajevo. For that reason, I just can't use any product made in Russia and I'll support every single sanction or ban put on Russia. Because the evil must be stopped and nothing could change my stance on this topic.