Generalizations usually come from ill-informed people with a hidden agenda.
Most people were not against any sort of revitalization efforts done well, for instance Mira Mesa revitalization was done well. Carlsbad did an excellent job of city planning. Those that opposed One Paseo, on the other hand, did so because there was very little planning to deal with the significant increase in traffic and footprint.
Anyone who is reasonable competently informed would know the difference. But no matter. One Paseo as a high density housing in suburbia turned out to be one big flop and now Kilroy gets take a financial bath in it with both it’s retail center being a complete disaster during Covid, and it’s high density units also seeing large vacancies because people could spend less money and get something with more space just a few blocks around the corner. Wrong again.