There is some charm in their naivety mixed with their display of self-importance. IIRC their "own" operating systems used to be derived from MenuetOS and similar open source projects.
As a side note, one of the family member (Óscar Toledo) seems to have been performing well in the International Obfuscated C Code Contest (IOCCC).
It describes the visit of a group of members of a FOSS community Cofradia (https://cofradia.org) to the Toledo family somewhere in mid 00s. Several users stated that the OS "looked suspiciously like MenuetOS". This is the opinion of people active in FOSS communities that probably had contact and played with MenuetOS at that time.
The article also makes IMHO a fair reflection on the family and their merits. The father is of humble extraction, with actual knowledge of electronics and low level programming but without any formal education. His passion about the topic becomes cult-like at times, with the rest of the family following his lead.