Cannot Find Solution For “Membership status cannot be calculated for ” Renewal Error!
The error message shows future start and join dates.  Civi is attempting to the determine the status as of the time of import, but none of the default status rules cover that scenario hence the error message.  'New' only applies from the 'member since' / 'join date' so is not applicable.

One option is to change your join dates to be the current time so that the memberships show as 'New'.  Your memberships would then be regarded as 'current' despite being before the membership start date.

Alternatively, you could create a 'future' status with start event of 'start date' with eg a '-1 month' adjustment, and an end date of 'start date'.  That should let you import the membership which will be inactive until the start date is reached.  (Not tested extensively but seems to work on a quick test.)