You are going in circles. the Purusha sukta uses the same worlds to describe god as the words used for Vishnu. Selective quoting them mean nothing.
Vishnu as described is from Adi Mandala,
Ato deva avantu no yato Vishnur vicakrame
prithivyah sapta dhamabhih,
Idam Vishnur vi cakrame tredha ni dadhe padam,
samudham asya pamsure,
trini pada vi cakrame Vishnur gopa adabhyah,
ato dharmani dharayan,
Vishnoh karmani pasyata yato vratani paspase,
Idrasya yujyal sakha,
tad Vishnoh paramam padam sada pasyanti surayah,
diviva caksur atatam.
a tad vipraso vipanyavo jagrvamsah sam indhate,
Vishnor yat paramam padam,
Gods bless us on the place Vishnu strode the seven corners of the earth,
Where Vishnu stepped when thrice he planted his foot and the whole (universe) was covered by his foots dust,
Three steps when Vishnu took, the infallible protector who established Dharma (Rightousness)
Look upon Vishnus work, who has let himself been seen, friend to Indra,
Even the Sun looks upon Vishnus everlasting feet,as the divine eye of Heaven,
This is the Vinshu the chanters sing in awareness that lights them, forever at his feet.
PS: Don't bother to dazzle me with selective quotes from the Vedas since I have read all of it.