

Do you even know what we are talking about? The migrants in question are not Russians. They are asylum seekers, people from Middle East or and Africa, tricked by Russians, Belarusians and smugglers into taking the route through Polish eastern border when looking for a better life in the West. They are denied asylum, brutally pushed back to Belarus (which pushes them back to Poland), often dying in the forest and swamps.
In fact Russians (most probable insurgents), as white people, would get much easier pass there.
And I am not talking about ‘accepting blindly’ anyone crossing the border. Just following the law (Polish and international ) and some human decency (like providing health care for sick and wounded) would do.
Safer roads would mean a lot of environment destruction in such case (and very high cost, for the low traffic there). I would rather wear some hi-vis and keep narrow rural roads rural and narrow.