Yoyogi isn't a big deal...not the worst but not great, and poorly integrated with the city, though I don't think I went by it on my single visit
*sighs* it's as if you're wilfully ignorant. you refuse to acknowledge the similarities between your mindset and the mindsets of those who advocated the idiot teardowns of the past.
YOU: all for nuking brutalism
Others similar to you circa 1965: all for nuking the singer and atlantic richfield
" circa 1975: all for nuking miami beach
you don't like yoyogi and twa, whatever. you don't realize these buildings had many innovations and influenced subsequent design. you might as well advocate for the destruction of the seagram building, sydney opera house, chicago marina towers, and the bank of china tower too.
btw, architectural record isn't about architecture. it's really more about various materials suppliers shilling their products and various paid off editorials. at least it's declined quite a bit in recent years.
if you were okay with nuking the buildings that don't comport with your narrow view of aesthetics, you're passively okay with padding some developer's profit margin. the need for a developer to get even wealthier is the driving force behind these demolitions. the buildings were weren't truly replaced, and subsequent generations will rue the fact that people of an earlier era were so egotistical, small-minded, and dismissive of their own heritage.
you STILL AVOID answering the question. how is your "pull 'em down" attitude any different from the hordes of architecture snobs who were in favor of nuking miami beach, or any number of then-loathed/now missed buildings? see, you cannot substantiate your initial assertion. your attitude is hypocritical, and there's no way you can justify it.
*edit* i still find it amazing that you'd conflate an entire genre/generation of architecture with being expendable. there is a lot of brutalism that was built to a cost, and is now nearing the end of its lifespan. at the same time, there is no shortage of brutalism that is worth preserving. if you're in seattle, drive two hours north to vancouver and see some of arthur erickson's works.