It's probably worth noting that the term "abhidhamma" appears in the suttas, but in that context it simply refers to the Buddha's teaching which do not infer a conventional person... thus, that which addresses elements, sense-bases, mindstates etc.
Then there is "Abhidhamma", not referred to in the suttas, which refers to the Abhidhamma Pitaka.
Whilst the differences are acknowledged, it's also worth bearing in mind that there's no concept of capital letters in Pali, so confusion may arise when it's not understood which (A/a)bhidhamma
is being referred to.
"Do not force others, including children, by any means whatsoever, to adopt your views, whether by authority, threat, money, propaganda, or even education." - Ven. Thich Nhat Hanh
"The uprooting of identity is seen by the noble ones as pleasurable; but this contradicts what the whole world sees." (Snp 3.12)
"To argue with a person who has renounced the use of reason is like administering medicine to the dead" - Thomas Paine