"Wishful thinkers" refers to people who imagine or hope for things that are unlikely or unrealistic to happen. They tend to have overly optimistic or idealistic thoughts without rational or logical evidence. Full definition
Even allowing for a healthy number of wishful thinkers in the bunch, it's a good - sized group. (inc.com)
On the other hand, he defies proponents of charters, vouchers, and other forms of school choice as wishful thinkers disposed to let marketplace theories trump evidence of student achievement while also undervaluing education's civic and cultural roles. (educationnext.org)
RIP oil age (I can't wait to hear the funny comments of petrolhead wishful thinkers, trying to fool themselves into thinking EVs will never go mainstream and that the oil industry as we know it is not doomed; yeah yeah petrochemicals will always be there I know, but what % of oil demand does that represent? (oilprice.com)