Yeah, no, I'm gonna have to stop you right there because politically there's simply no such possibility that a majority of Polish population supports these protests.
The 'expanded significantly' protest groups include farmers and miners, both of which have really bad rep among about half the voting population. You know, the half that just a couple of months ago had the biggest election turnout in the history of the country to reject PiS government.
Farmers are often viewed by the so-called centre as anti-EU PiS or Konfederacja supporters (hard right), their retirement program is widely hated among them and there's a sentiment that they are no 'ordinary farmers' in the traditional sense but more akin to entrepreneurs/bussinessmen who happen to have a company dealing in agriculture.
Miners are hated due to high salaries, their retirement program viewed as privilage and being effective labour group working in it's interest.
Both groups are widely hated for historically organising any kind of protest in cities or blocking highways.
Then the liberal left often hates both because they are seen as an obstacle to a more green and eco-friendly future.
We're talking about people with political identity who just overturned a government that was viewed by them as too reliant on farmers and miners. In recent months the anti-ukrainian tendencies might show stronger but believe me when I say so, people I'm talking about will rather support Ukrainians than farmers or miners in any such border 'conflict'.