Even if we were to open up a SAMP server - that train is long gone now. RCRP has already reopened their server and why the hell would anyone in their right mind decide to migrate from RCRP to LSRP once it opens back up on SAMP? All efforts should be focused toward advertising the server and working on updates, providing the players with constant access and availability from team leaders/staff and in general promoting a positive environment/atmosphere.
I can't see myself going back to SAMP unironically after starting to roleplay on GTA V. It's like switching from a Bugatti to a Yugo just because you're nostalgic temporarily. There are less cheating opportunities on GTA V, more script support, more opportunities to immerse yourself in your character because of the various skin mods - that mind you, EVERYONE can see. Unlike SAMP where you needed to get CodsMP and rumble with .txd and .dff files to put a custom skin on anyone so that you weren't stuck with basic vanilla peds. I mean, that's just one of the many examples.
Just because we're at a low with the playerbase doesn't mean that everything's going to fall apart. Consistency is what matters. Consistent updates, consistent feedback, consistent surveys, consistent events, consistent announcements, consistent everything. Constantly complaining about reopening the server on SAMP whilst actively not contributing to the community is completely OK - but don't be surprised or angry when someone tells you that it's not going to happen.