From the characterization that the OP gives, it’s clear that he doesn’t understand the differences between genres of electronic music. Perhaps the only similarity in electronica with disco might be Vocal House, and what “pop” music is/was out there in the 90s like what the band Technotronic put out. But for most who appreciate real techno, most of what disco represented is not the same.
Techno, on the other hand, can be very intricate in construction, and other than the steady pulse of the kick drum pattern, shares very little with disco. Disco emanated from a combination of latin rhythms, funk, and orchestral-backed arrangements, and leaned more toward requiring a lead vocal of some sort.
Techno emerged from within synth music, where every instrument exists in an electronic sequencer, and in many cases, focuses on minimalist concepts of pitch, harmony, and rhythm. Most techno is devoid of melody, and is much more meditative (i.e. trance music), than a lyric-inspired disco “groove.”
As for the herpes comment, some Metallica songs remind me of a herpes outbreak, but that’s just me…