these protests need to be looked at from the geopolitical view:
The picture above is of the Suwalki Gap or corridor. It's the only land connection that Belarus/Russia has with the enclave of Kaliningrad. Coincidentally it's also the only land corridor between the Independent Baltic states and Poland.
There have been rumours in the past that Putin has planned to use Belarus or "little green men/unknown forces" to invade the Suwalki Gap and then have the Russian Armed forces move in as "peacekeepers" to secure the area when the fighting is over and a political agreement is made between the US/EU/NATO & Russia/Belarus on the other side over this region.
Whilst the idea of Russia invading a NATO member like Lithuania may sound unlikely and bordering on the insane when you take into account the famous Article 5 I personally would not count it out. Russian backed forces could easily take the Lithuanian side of the Suwalki gap in a 24 hour period (assuming that forces from both the Belarus and Kaliningrad are used backed up by air power and long range artillery/missiles)
I don't think European Nations would stomach a potential conflict with Russia over a small strip of land in Lithuania. Poland would be another story entirely but all eyes point to the Russians/Putin trying to secure this corridor in Lithuania itself. Lithuania has also a much smaller/weaker armed forces than Poland and would require massive assistance from other NATO member states in order to defend its territory. Again in this current climate with President Donald Trump unlikely to intervene and with negative public sentiment towards liberal governments in Western European countries it would be hard to justify a potential WW3 over a 20km wide corridor in the Baltics.
why is this important? Well today it was reported that Belarus scrambled Mi-24 Hind attack helicopters against Baloons launched from Lithuania. Could Lukashenko use these protests as a Cassius belli to declare war? This area is of great geo-strategic importance for Both Russia and the Independent Baltic states. However for Russia it serves two purposes - a physical connection with Kaliningrad and blocking off the Baltic states from the outside world via land, who have been a thorn in Russia's side ever since they joined NATO.
US Troops & Abrams Tanks Arrive In Lithuania For Military Drills Along Border With Belarus | ZeroHedgeZeroHedge - On a long enough timeline, the survival rate for everyone drops to zerowww.zerohedge.com
High profile opposition leaders are being targeted now