that you’re content with 1080p SDR doesn’t mean higher quality video is bullshit. However I will add that as video production quality has increased to make proper high quality UHD content, that has also increased the quality of the same content in 1080p SDR (in many cases). So depending on what you watch, the 1080p SDR content might already be of such quality that you don’t perceive a large difference between that and the UHD version because there isn’t, not just because you’re indifferent to it