I am the Lord; that is my name;
my glory I give to no other,
nor my praise to carved idols (Isaiah 48:8)
that all may honor the Son, just as they honor the Father. Whoever does not honor the Son does not honor the Father who sent him (John 5:23)
So the logic behind the question goes something like this: Jesus is honoured in the same way as the Father is honoured and therefore he must be God, because God does not share glory and honour. The assumption is that “just as” in John 5:23 means “in the same way”. But this is simply incorrect. This verse is making the comparison between the honour of the Father and the honour of the Son, and making the point that the Son will be honoured because the Father is honoured. This verse is not about the quality, quantity or degree of honour.