#1 - Local head-to-head or co-op video games only require a single copy. There are also lots of video games that are free, which is definitely never the case with board games.
#2 - This is a ridiculous point. Even way back when most games were on CD/DVD, hundreds of digital games would have the same physical dimensions as a single board game. Now with ubiquitous WiFi and Steam et al you have your entire library of games literally anywhere.
#3 - This is somewhat true, but with a couple caveats. First, there are plenty of video games with 10 year+ longevity, and I'm not just talking about continuously-developed ones. I just replayed Star Control 2, a game that is over 20 years old, and loved it. Second, it's more a function of expectations and business models than anything else. Board games are re-released with expanded rules, better art, better pieces, etc, and many board gamers will sneer at older versions, but it's an exception rather than a rule as it is with video games.
#4 - True, but again this is just an issue with a subset of computer games. I'll point out that there's still, despite DRM etc, a huge thriving used video game market.
#5 - Definitely true, and unquestionably a huge draw for board games imo.
#6 - Back to #1, there are plenty of video games that you play socially, and it's an antiquated view that online interactions are not real socializing. I don't fundamentally disagree with you that in-person is better, but as I've gotten older I've found video games to be far better social engines simply because they are less failure-prone. Now that I'm in my 30s and have kids and most of my board gaming friends are in a similar state, actually getting 4+ people together in the same place to play a game is challenging. Digital games have much less overhead and are not totally shut down by someone needing to stop for 10 minutes.