Ram means 'to compress'. For "Ram" to apply to the J58, the engine would have to be able to shut down its compressors, and rely on inlet air only to propagate its motive power.
I am guessing that could not be the case with this engine. 'Ram Effect'? All turbine engines experience ram "Effect".
That is the 'semantic' description of "Ramjet". The term 'Ram' and 'jet' are not synonymous. One implies a confined and controlled gaspath (jet), the other, a 'passive' (Ram) supply of airmass whose characteristic energy is created by the velocity of the inlet through the air....
impo....