Nearly every environment-adjacent field has concern nannies who make unrealistic risk assessments which then get regurgitated into guilt-inspiring newspaper articles. This is especially common when there is no way to determine for certain what the actual risk is; some folks fall on the "allow zero risk" side.

Some concern is warranted. I think that plasticizer or dyes leaching from plastics is a very real problem, so I try to avoid food stored in plastic containers (this includes tin cans, they are often lined with plastic).

This is a solvable problem, though. Polyethylene doesn't need plasticizers.