"Blanket condemnation" refers to making a general and harsh judgment or criticism of an entire group or category of people, without considering specific individuals or circumstances. Full definition
The arguments you offer aren't love, but total judgment and blanket condemnation when you have no place to do so. (nakedpastor.com)
Infant deaths that occurred as a result of bed sharing under these circumstances have resulted in health authorities such as the American Academy of Pediatrics recommending that parents not sleep with their infants.6 It is ironic that not only does blanket condemnation of bed sharing potentially make parenting unnecessarily more difficult for some mothers, it also has the unintended outcome of increasing deaths in places other than beds, such as sofas. (nourishconsulting.net)
More and more church groups seem to be feeling a bit guilt - stricken about blanket condemnation of homosexuality and especially of homosexual persons. (religion-online.org)